Ok so I was playing minecraft for about 2 hours: no problems. But then i exited off the game and then when i went back on it wouldn't work. I would press play but then when the MOJANG logo showed up the game never cam after it. It would take like 30 seconds then it would go back to the launcher saying It had crashed. I tried redownloading my JAVA and MINECRAFT. But it still doesn't work. I even waited a day and then tried again but it still was doing the same thing. The day it happened I had been adding some more Resource packs so i deleted them all too. HELP ME!!?!?!?
CRASH REPORT:
Description: Initializing game

java.lang.OutOfMemoryError: Java heap space
at cue.a(SourceFile:230)
at cua.b(SourceFile:130)
at cua.a(SourceFile:77)
at cxh.j(SourceFile:553)
at cxh.a(SourceFile:139)
at cxk.a(SourceFile:23)
at cvt.a(SourceFile:99)
at bss.ak(SourceFile:440)
at bss.a(SourceFile:302)
at net.minecraft.client.main.Main.main(SourceFile:124)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

– Head –
Stacktrace:
at cue.a(SourceFile:230)
at cua.b(SourceFile:130)
at cua.a(SourceFile:77)
at cxh.j(SourceFile:553)
at cxh.a(SourceFile:139)
at cxk.a(SourceFile:23)
at cvt.a(SourceFile:99)
at bss.ak(SourceFile:440)

– Initialization –
Details:
Stacktrace:
at bss.a(SourceFile:302)
at net.minecraft.client.main.Main.main(SourceFile:124)

– System Details –
Details:
Minecraft Version: 1.8.1
Operating System: Mac OS X (x86_64) version 10.10.1
Java Version: 1.6.0_65, Apple Inc.
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Apple Inc.
Memory: 25452512 bytes (24 MB) / 1060372480 bytes (1011 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 5 total; -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.8.1
LWJGL: 2.9.2
OpenGL: Intel HD Graphics 4000 OpenGL Engine GL version 2.1 INTEL-10.0.86, Intel Inc.
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because ARB_framebuffer_object is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: No
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs: [Inter_Realistic_Modern_Pack_512_V1.8.zip]
Current Language: English (US)
Profiler Position: N/A (disabled)